Fig. 4
A 34-year-old male patient with retroperitoneal metastatic lymph nodes from primary hepato cellular carcinoma. a. Preoperative enhanced CT showed metastatic lymph nodes (arrow) with size of 42mm * 21mm, adjacent to the left renal vein, inferior vena cava, and abdominal aorta. b. Intraoperative CT scan. c, d. 4months after 125I brachytherapy, the lesion had disappeared.